DBM

They do feel very notchy/coggy....feels strong. Sounded very nice and smooth on the dyno/motor checker. Surprisingly smooth and quiet sounding for how coggy they feel.

evochick

iTrader: (5)

Yep quicker....
I really liked it. Was super smooth down low and had plenty of legs on the straight. I did back to back race meets and compared to the standard D4 was quicker by 2 tenths a lap on a 13.7 second lap.

I only ran timing at 45 on both motors , will raise gearing further and see if I can turn timing up I just didn't have anything higher at the time. For gearing change I went from 3.6 from the standard to 3.7 for the 1s.

BulletMan

as i don't have a motor checker....
where are you putting the timing on the end-bell for 1/12 ? Also where is the "sweet spot" for motor temps?

We run on a very short track, 50' straight with lap times of 6.5 - 7.5 seconds.
(roll-out suggestions welcome )

i have been 4th or 5th too long.... time to retire the 5 year old Sonic (used in 2wd buggy as well) ((sorry Associated... u need more POWER ))

PM me ur thoughts if you don't want to share your secrets

Danny-b23

iTrader: (3)

Ran this on a 100x48 ft. carpet track here in Canada, geared 4.0, 50 timing, could have used more gear if the infield wasn't so tight.

evochick

iTrader: (5)

I was lucky enough to receive a Valentine’s day present of a SkyRC motor analyser today so ran through all the 13.5 motors in my pitbox.

Some very interesting numbers, I’ll let people draw their own conclusions on the figures. I ran the tests on various timings on both D4's.
Interesting to note the difference in sensor boards of my 2 D4’s

Motors were
D4 1S 5% certified
D4 12.5 high torque rotor and 5% certified stator
Orca XT
D3.5 5% certified

Results

D4 1s 5% certified

45deg timing on can
KV= 3129
RPM = 25971
U= 8.3v
I= 2.5A
Average Timing 40deg

50deg timing on can
KV= 3249
RPM = 26969
U= 8.3v
I= 3.7A
Average Timing 45deg

55deg timing on can
KV= 3571
RPM = 29292
U= 8.2v
I= 6.4A
Average Timing 50deg

D4 12.5 high torque rotor and 5% certified stator

45deg timing on can
KV= 2992
RPM = 24835
U= 8.3v
I= 2.0A
Average Timing 37deg

50deg timing on can
KV= 3231
RPM = 26821
U= 8.3v
I= 3.4A
Average Timing 42deg

55deg timing on can
KV= 3575
RPM = 29318
U= 8.2v
I= 6.4A
Average Timing 46deg

Orca XT

Timing one mark past the last mark
KV= 3416
RPM = 28354
U= 8.3v
I= 3.8A
Average Timing 46deg

Trinity D3.5 5% certified

15deg timing on can
KV= 2968
RPM = 24641
U= 8.3v
I= 2.5A
Average Timing 51deg

Beth.

danny250r

iTrader: (58)

i been running this motor the last few weeks in my xray t4 i deff like it better then my orca i was running 48/96 but im thinking of trying 46/96 next time my highest temp was like 120

patorz31

What is everyone running for timing and rollout on the 13.5 in a 1/12th scale on 1s?

VegasGator

I race 17.5 TC on a carpet track and after putting in the new D4 along with some help from EA I went .2 per lap faster on average than with my other motor. I found a FDR of around 3.8 and 55 deg on the can was close to the sweet spot.

goots

iTrader: (20)

3.5 short stack 50 deg on can, +1462 -1450
3.3 long stack 45 deg on can, + 1438 - 1452

Outdoor medium sized asphalt track